North of 60, we use a variety of fixed-wing heavier than air machines to service the DEW and PINE systems, and others, and to transport personnel and supplies to Alert, the northernmost manned post on earth.

We have ice breakers, but why would you want to keep the Northwest Passage open all year?

Tha fact is that this is our very strategy. If anyone lands way up there to attack, they'll freeze before they get to us. Even if they made it close to the tree line, we'd just hide behind the trees and shoot them coming over the barren watseland of the True North, Strong and ****ing Cold.